Difference between revisions of "Group 26 - Compaq Printer"

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== '''Executive Summary''' ==
 
== '''Executive Summary''' ==
  
Our group project was the Compaq IJ600 color printer. We were assigned to disassemble, analyze, and reassemble the printer and all its respective components. Using the information we  
+
Our group project was the Compaq IJ600 color printer. We were assigned to disassemble, analyze, and reassemble the printer and all its respective components. Using the information we obtained from this entire process, our task was to implement some design enhancements and possible improvements to the printer. We meticulously recorded every piece that was removed and documented the few tools that were used. The product was an inkjet printer that was relatively easy to disassemble, though we ran into some problems.  
 
+
obtained from this entire process, our task was to implement some design enhancements and possible improvements to the printer. We meticulously recorded every piece that was  
+
 
+
removed and documented the few tools that were used. The product was an inkjet printer that was relatively easy to disassemble,
+
though we ran into some problems.  
+
  
  
Line 13: Line 8:
 
== '''Introduction''' ==
 
== '''Introduction''' ==
  
For our introduction we
+
The product our group was tasked with disassembling was a simple desktop printer. The Compaq IJ 600 is single function inkjet printer. The intended use was for common household medium to low volume printing. The IJ 600 can print in both color and black ink due to separate cartridges. The Compaq IJ 600 has a 100-sheet paper tray for storing paper for print jobs. It can be connected to the computer via a Parallel port or a USB B-type connection.
 +
 
 +
Work for the project was divided evenly among group members. 
 +
 
 +
Group Leader- Sameer Parikh
 +
 
 +
Disassembly/Assembly Team- Kevin King, Casey Jacobs
 +
 
 +
Presentation/Wiki Team- Chris Martensen, Sameer Parikh, Johnnie Pacifico, Casey Jacobs
 +
 
 +
Presenters- Kevin King, Johnnie Pacifico
 +
 
 +
CAD Drawing- Kevin King
 +
 
  
 
== '''Group Members''' ==
 
== '''Group Members''' ==
Line 28: Line 36:
  
 
== '''Before Disassembly''' ==
 
== '''Before Disassembly''' ==
 +
The Compaq Model IJ600 printer was in fairly good condition when we received it. The top casing had a broken knob on one end, but didn’t have a substantial effect on the printer’s appearance or the operation of the casing. It was a little dirty, but that was expected considering how long ago the printer was made. When we opened it up, it looked as if the dissection would be difficult. However upon further examination, the weird shapes of the parts created the illusion that there were more components than there actually were. There ended up being more screws than anything else. All in all, the printer consisted of about 25 to 30 screws and about 20 actual parts. It seems there are only three or four different types of materials used. The metal brace located inside towards the back was aluminum. The paper rollers and some screws seemed to be manufactured out of steel. Other screws, which varied in color, could have been made out of bronze. A belt that was part of the ink cartridge moving system was made out of rubber. The rest of the components, including the casing, trays, ink cartridges, ink cartridge holder, gears, and other little minor components were made out of plastic.
 +
 +
Although the printer did not function when we received it due to the missing power cord, it was easy to see how the printer would work when we removed the top casing.  First, the printer’s circuit boards receive information from the computer about the image or text to be printer. The circuit boards then distribute information to the appropriate motors, gears, and the ink cartridges. The first action is the translation from electrical energy to mechanical energy by the first of two paper rollers. When it is time to print, the first roller catches the paper from the top loading section and pushes it through to the second roller. The second roller then grabs the paper and pushes it through underneath the ink cartridges in spurts. Simultaneously, the ink cartridges and the motors moving them process the information about the image to be printed. The motors move the ink cartridges back and forth as they expend little droplets of ink on the page in order to create the desired image. When a line of certain width has the correct ink pattern and density, the motor connected to the roller moves the paper just enough so that the ink cartridges can start printing the next line. This process continues until the entire image is correctly mirrored on the paper. Finally, the roller pushes the finished document out to the tray in the front of the printer.
 +
  
 
== '''Disassembly''' ==
 
== '''Disassembly''' ==
Line 39: Line 51:
 
|-  
 
|-  
 
| align="center" |1
 
| align="center" |1
| align="center" |Remove 7 Phillips-head screws
+
| align="center" |Unscrew four screws in top casing
 
| align="center" |Phillips-head Screwdriver
 
| align="center" |Phillips-head Screwdriver
| align="center" |Easy, 1 Screw Quite Difficult
+
| align="center" |Easy
 
|-  
 
|-  
 
| align="center" |2
 
| align="center" |2
| align="center" |Removed Rip Fence Bolt to Saw Blade Locking Lever
+
| align="center" |Remove the top case
 
| align="center" |By Hand
 
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |3
 
| align="center" |3
| align="center" |Removed Removed Dust Blower Angle off of Dust Blower
+
| align="center" |Unscrewed the two screws that held in the metal brace in order to easily remove its’ individual parts
| align="center" |By Hand
+
| align="center" |Phillips-head Screwdriver
| align="center" |Easy
+
| align="center" |Moderate(awkward positioning)
 
|-  
 
|-  
 
| align="center" |4
 
| align="center" |4
| align="center" |Removed Dust Blower and Rip Fence off of Casing
+
| align="center" |Removed three screws which detached the circuit board and the two motors
| align="center" |By Hand
+
| align="center" |Phillips-head Screwdriver
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |5
 
| align="center" |5
| align="center" |Removed Rip Fence off of Casing
+
| align="center" |Removed three screws which detached a motor soldered to a smaller metal brace along with another motor
| align="center" |By Hand
+
| align="center" |Phillips-head Screwdriver
| align="center" |Easy
+
| align="center" |Moderately Easy
 
|-
 
|-
 
| align="center" |6
 
| align="center" |6
| align="center" |Removed Plastic Blade Guard off of Casing
+
| align="center" |Popped out metal roller that held a gear which moved gears on the opposite side of the metal brace
 
| align="center" |By Hand
 
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |7
 
| align="center" |7
| align="center" |Removed Casing off of Casing
+
| align="center" |Slid a spring off the end of it
| align="center" |Philips-head Screwdriver
+
| align="center" |By Hand
| align="center" |Moderately Easy  
+
| align="center" |Easy  
 
|-
 
|-
 
| align="center" |8
 
| align="center" |8
| align="center" |Removed Gel Max Comfort Grip off of Casing
+
| align="center" |Removed plastic holding which contained the second circuit board by popping it over rubber belt
 
| align="center" |By Hand
 
| align="center" |By Hand
| align="center" |Easy
+
| align="center" |Moderately Easy
 
|-
 
|-
 
| align="center" |9
 
| align="center" |9
| align="center" |Removed Shoe Plate Locking Gear off of Casing
+
| align="center" |The ink cartridges popped right out
 
| align="center" |By Hand
 
| align="center" |By Hand
| align="center" |Easy
+
| align="center" |Moderately Hard
 
|-
 
|-
 
| align="center" |10
 
| align="center" |10
| align="center" |Removed Shoe Plate Locking Knob off of Casing
+
| align="center" |With the removal of two screws the circuit board came off of the plastic holding
| align="center" |By Hand
+
| align="center" |Phillips-head Screwdriver
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |11
 
| align="center" |11
| align="center" |Removed Trigger Switch off of Casing
+
| align="center" |Unscrewed two screws to remove two circular-shaped pieces of metal that the metal roller passed through
| align="center" |By Hand
+
| align="center" |Phillips-head Screwdriver
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |12
 
| align="center" |12
| align="center" |Removed Lock on Button off of Trigger Switch
+
| align="center" |Removed two tiny metal clips which allowed the metal rod to be pulled out
 
| align="center" |By Hand
 
| align="center" |By Hand
| align="center" |Easy
+
| align="center" |Moderate
 
|-
 
|-
 
| align="center" |13
 
| align="center" |13
| align="center" |Removed Lock Spring off of Lock on Button
+
| align="center" |Removed the four page rollers which were located on the underside of the metal brace by detaching their springs which were latched onto a hook in the brace
| align="center" |Flat-head Screwdriver
+
| align="center" |By Hand
| align="center" |Easy
+
| align="center" |Moderately Easy
 
|-
 
|-
 
| align="center" |14
 
| align="center" |14
| align="center" |Removed Plastic Lock Washers off of Lock on Button
+
| align="center" |Detached plastic paper roller
| align="center" |Flat Head Screwdriver
+
| align="center" |By Hand
| align="center" |Moderately Difficult
+
| align="center" |Easy
 
|-
 
|-
 
| align="center" |15
 
| align="center" |15
| align="center" |Removed Switch Breaker off of Trigger Switch
+
| align="center" |Slid off spring
 
| align="center" |By Hand
 
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |16
 
| align="center" |16
| align="center" |Removed 2 Cord Clamp Screws off of Cord Clamp off of Casing
+
| align="center" |Slid off another plastic roller
| align="center" |Phillips-head Screwdriver
+
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |17
 
| align="center" |17
| align="center" |Removed Red Motor Connecting Wire off of Spring Loaded Graphite
+
| align="center" |Pulled off first gear attached to plastic paper roller
 
| align="center" |By Hand
 
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |18
 
| align="center" |18
| align="center" |Removed Black Motor Connecting Wire from Spring Loaded Graphite
+
| align="center" |Unscrewed three screws holding gears
| align="center" |By Hand
+
| align="center" |Phillips-head Screwdriver
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |19
 
| align="center" |19
| align="center" |Disassembled Spring Loaded Graphite Internals
+
| align="center" |Pulled off gears
 
| align="center" |By Hand
 
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |20
 
| align="center" |20
| align="center" |Removed Motor Screw From Casing
+
| align="center" |Unscrewed two screws
| align="center" |Philips-head Screwdriver
+
| align="center" |Flat head Screwdriver
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |21
 
| align="center" |21
| align="center" |Removed Red Motor Connecting Wire From Armature
+
| align="center" |Pulled off plastic bridge holding second paper roller
| align="center" |By Hand
+
| align="center" |by Hand
| align="center" |Easy
+
| align="center" |Moderate
 
|-
 
|-
 
| align="center" |22
 
| align="center" |22
| align="center" |Removed Black Motor Connecting Wire from Armature
+
| align="center" |Pulled out paper roller
 
| align="center" |By Hand
 
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |23
 
| align="center" |23
| align="center" |Removed Metal Gear From 1/4in. Plate
+
| align="center" |Slid out plastic cartridge support
 
| align="center" |By Hand
 
| align="center" |By Hand
| align="center" |Easy
 
|-
 
| align="center" |24
 
| align="center" |Removed 1/4in. Metal Plate from Armature Shaft With Rotar
 
| align="center" |By Hand
 
| align="center" |Easy
 
|-
 
| align="center" |25
 
| align="center" |Removed Small Metal Plate off of Armature Shaft With Rotar
 
| align="center" |By Hand
 
| align="center" |Easy
 
|-
 
| align="center" |26
 
| align="center" |Removed Linear Oscillator from Metal Gear
 
| align="center" |By Hand
 
| align="center" |Easy
 
|-
 
| align="center" |27
 
| align="center" |Removed Washer off of Gear from Metal Gear
 
| align="center" |By Hand
 
| align="center" |Easy
 
|-
 
| align="center" |28
 
| align="center" |Removed Cylindrical Slider from Linear Oscillator
 
| align="center" |By Hand
 
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
|}
 
|}
  
 +
== '''After Disassembly''' ==
  
== '''After Disassembly''' ==
+
The CAD files can be downloaded <!--GICL Bot edit:-->[[Group_26_CAD_Files_MAE_277_Fall_08.zip Contents|here]].
  
 
===Part Table===
 
===Part Table===
Line 192: Line 180:
 
! width="100" | Manufacturing Process
 
! width="100" | Manufacturing Process
 
! width="50" | Image
 
! width="50" | Image
! width="50" | CAD Crawings
 
 
|-  
 
|-  
 
| align="center" | 1
 
| align="center" | 1
Line 208: Line 195:
 
| align="center" | Lets the paper flow easier from the start to the end.
 
| align="center" | Lets the paper flow easier from the start to the end.
 
| align="center" | Machined
 
| align="center" | Machined
| [[Image:clips.jpg|center|thumb|75px]]
+
| [[Image:Clips 1.jpg|center|thumb|75px]]
 
|-  
 
|-  
 
| align="center" | 3
 
| align="center" | 3
| align="center" | Rip Fence Bolt
+
| align="center" | Ink Cartridge Holder
 
| align="center" | 1
 
| align="center" | 1
| align="center" | Steel because bolts need to be strong enough to endure twisting and regular force
+
| align="center" | Plastic
| align="center" | To hold the rip fence onto the casing
+
| align="center" | To hold the cartridge in place.
| align="center" | So it can pull two objects together
+
| align="center" | Molded then Machined, and placed by hand
| align="center" | Molded then Machined
+
| [[Image:008.jpg|center|thumb|75px]]
| [[Image:rip fence bolt.jpg|center|thumb|75px]]
+
 
|-  
 
|-  
 
| align="center" | 4
 
| align="center" | 4
| align="center" | Dust Blower Angle
+
| align="center" | Top Roller
 
| align="center" | 1
 
| align="center" | 1
| align="center" | ABS Plastic because it does not take a lot of wear and tear. Also it is cheap and easy to make
+
| align="center" | Plastic and metal for springs
| align="center" | To be a pathway for sawdust and air when a vacuum is attached
+
| align="center" | Moves the paper from tray towards the ink cartridge
| align="center" | To turn so the angle can pick up sawdust directly off of what is being cut
+
 
| align="center" | Injection Molded
 
| align="center" | Injection Molded
| [[Image:dust blower angle.jpg|center|thumb|75px]]
+
| [[Image:037.jpg|center|thumb|75px]]
 
|-  
 
|-  
 
| align="center" | 5
 
| align="center" | 5
| align="center" | Dust Blower
+
| align="center" | Pulling paper axed
 
| align="center" | 1
 
| align="center" | 1
| align="center" | ABS Plastic because it does not take a lot of wear and tear. Also it is cheap and easy to make
+
| align="center" | Metal and rubber
| align="center" | To be an opening for the pathway which the dust will flow through
+
| align="center" | Rolls with the help of the motor and brings the paper out with ease.
| align="center" | To be an opening so it can pick up dust and be pressure fit to the rip fence
+
 
| align="center" | Injection Molded
 
| align="center" | Injection Molded
| [[Image:dust blower.jpg|center|thumb|75px]]
+
| [[Image:033.jpg|center|thumb|75px]]
 
|-  
 
|-  
 
| align="center" | 6
 
| align="center" | 6
| align="center" | Rip Fence
+
| align="center" | Motherboard
 
| align="center" | 1
 
| align="center" | 1
| align="center" | Steel because the bottom will be rubbed and hit as it is used quite often
+
| align="center" | Computer material
| align="center" | To provide a guide and a base with which to push down on and move the blade
+
| align="center" | Takes information from the printer and prints off onto a paper.
| align="center" | It is flat so it is easy to push and guide the blade along it's path
+
 
| align="center" | Injection Molded, Machined
 
| align="center" | Injection Molded, Machined
| [[Image:rip fence.jpg|center|thumb|75px]]
 
 
|-  
 
|-  
 
| align="center" | 7
 
| align="center" | 7
| align="center" | Right Side Casing
+
| align="center" | Gear Head
 
| align="center" | 1
 
| align="center" | 1
| align="center" | ABS Plastic because it is durable and when it is thick it can deal with a lot of abuse and punishment
+
| align="center" | Metal and plastic
| align="center" | To hold all the parts together along with screws
+
| align="center" | Turns all the rollers via a motor
| align="center" | To hold all parts in one area and keep them from moving in ways they aren't supposed to
+
| align="center" | Machined and Hand Processed
| align="center" | Injection Molded
+
| [[Image:035.jpg|center|thumb|75px]]
| [[Image:casing 1.jpg|center|thumb|75px]]
+
 
|-  
 
|-  
 
| align="center" | 8
 
| align="center" | 8
| align="center" | Left Side Casing
+
| align="center" | Motor
| align="center" | 1
+
| align="center" | 2
| align="center" | ABS Plastic because it is durable and when it is thick it can deal with a lot of abuse and punishment
+
| align="center" | Metal
| align="center" | To hold all the parts together along with screws
+
| align="center" | Runs off power cord to run the rollers and gear head
| align="center" | To hold all parts in one area and keep them from moving in ways they aren't supposed to
+
 
| align="center" | Injection Molded
 
| align="center" | Injection Molded
| [[Image:casing 2.jpg|center|thumb|75px]]
+
| [[Image:044.jpg|center|thumb|75px]]
 
|-  
 
|-  
 
| align="center" | 9
 
| align="center" | 9
| align="center" | Plastic Blade Guard
+
| align="center" | Cartridge Holder
 
| align="center" | 1
 
| align="center" | 1
| align="center" | Plastic because it is a part you look through to see the blade and to protect a persons hand from the blade
+
| align="center" | Plastic
| align="center" | To guard the front of the blade so nothing hits the blade that is not supposed to
+
| align="center" | Holds the cartridges in place, internally
| align="center" | to cover an area to make it inaccessible to hands and fingers
+
| align="center" | Hand Processed
| align="center" | Injection Molded
+
| [[Image:032.jpg|center|thumb|75px]]
| [[Image:plastic blade guard.jpg|center|thumb|75px]]
+
 
|-  
 
|-  
 
| align="center" | 10
 
| align="center" | 10
| align="center" | Gel-max Comfort Grip
+
| align="center" | Cartridge Belt
 
| align="center" | 1
 
| align="center" | 1
| align="center" | Gel because it gives and helps absorb the vibrations of the jigsaw
+
| align="center" | Rubber
| align="center" | To comfort the hands of user
+
| align="center" | Helps move the ink cartridge back and forth.
| align="center" | To cover and area where the users hands would be
+
| align="center" | Hand Processed
| align="center" | Manufactured
+
| [[Image:gel-max comfort grip.jpg|center|thumb|75px]]
+
 
|-   
 
|-   
 
| align="center" | 11
 
| align="center" | 11
| align="center" | Shoe Plate Locking Gear
+
| align="center" | Back Internal Case
 
| align="center" | 1
 
| align="center" | 1
| align="center" | Plastic because it is cheap and easy to make and the part does not take much punishment
+
| align="center" | Metal
| align="center" | The person spins it to lock the rip fence in place at a certain angle
+
| align="center" | Holds the motherboard rollers and other components in place.
| align="center" | It is a gear with teeth to turn another gear locking the rip fence
+
 
| align="center" | Injection Molded
 
| align="center" | Injection Molded
| [[Image:shoe plate locking gear.jpg|center|thumb|75px]]
+
| [[Image:030.jpg|center|thumb|75px]]
|-
+
|-
 
| align="center" | 12
 
| align="center" | 12
| align="center" | Shoe Plate Locking Knob
+
| align="center" | Top Case
 
| align="center" | 1
 
| align="center" | 1
| align="center" | Plastic because it is cheap and easy to make and the part does not take much punishment
+
| align="center" | Plastic
| align="center" | The person turns the knob with their fingers to lock the rip fence in place
+
| align="center" | Secures the ink cartridges and other components.
| align="center" | It is a gear and knob with teeth to turn another gear to lock the rip fence in place
+
| align="center" | Machine Processed
| align="center" | Injection Molded
+
| [[Image:shoe plate locking knob.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 13
+
| align="center" | Trigger Switch Component
+
| align="center" | 1
+
| align="center" | Plastic, Copper, Steel, Aluminum because all these are need to get current to flow through it into the motor
+
| align="center" | To control rate of flow of current to the motor
+
| align="center" | It is made so there is a constant flow and path of a certain amount of current to the motor
+
| align="center" | Manufactured
+
| [[Image:trigger switch.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 14
+
| align="center" | Lock on Button
+
| align="center" | 1
+
| align="center" | Plastic because it is cheap and easy to make and the part does not take much punishment
+
| align="center" | It locks the trigger so that it cannot turn the engine on
+
| align="center" | It has two sides so it can be pressed and a small dash in the middle so it can block the trigger
+
| align="center" | Injection Molded
+
| [[Image:lock on button.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 15
+
| align="center" | Lock Spring
+
| align="center" | 1
+
| align="center" | Steel to make a durable and strong spring
+
| align="center" | It helps make moving the locking trigger easier
+
| align="center" | It is made in the spring shape to force an object in one direction
+
| align="center" | Manufactured
+
| [[Image:lock on spring.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 16
+
| align="center" | Plastic Lock Washers
+
| align="center" | 2
+
| align="center" | Plastic because they do not get much force on them and it is cheap to make
+
| align="center" | It is to be put on either side of the spring and holding it there
+
| align="center" | It is made to hold the spring so it will not slip and be wide enough so all the force will be transfered
+
| align="center" | Injection Molded
+
| [[Image:lock on plastic washers.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 17
+
| align="center" | Switch Breaker
+
| align="center" | 1
+
| align="center" | Aluminum because it is conductive to metal and will melt breaking the circuit if to much current flows through
+
| align="center" | A circuit breaker that causes the jigsaw to stop working of too much current starts to flow through it
+
| align="center" | It is cheap and melts at relatively low temperatures and can handle current going through it
+
| align="center" | Machined
+
| [[Image:switch breaker.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 18
+
| align="center" | Cord Clamp Screws
+
| align="center" | 2
+
| align="center" | Steel because they need to be durable and withstand the torque and shear force
+
| align="center" | To push down on the cord clamp to hold the cord in the casing
+
| align="center" | It was made to pull the cord clamp against the cord
+
| align="center" | Machined
+
| [[Image:cord clamp screws.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 19
+
| align="center" | Cord Clamp
+
| align="center" | 1
+
| align="center" | Steel because it needs to be strong and is pushed against things
+
| align="center" | The screws push on it and then it in turn pushes on the cord to keep it in the casing
+
| align="center" | it was made that way to push evenly on the cord and near flat to save on manufacturing costs
+
| align="center" | Injection Molded, Machined
+
| [[Image:cord clamp.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 20
+
| align="center" | Red Motor-connecting Wire
+
| align="center" | 1
+
| align="center" | Rubber and Copper which are great insulating and conducting properties
+
| align="center" | It conducts electricity from the trigger to the motor
+
| align="center" | It is made to conduct electricity as efficiently as possible and the rubber to insulate it
+
| align="center" | Manufactured
+
| [[Image:red wire.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 21
+
| align="center" | Black Motor-connecting Wire
+
| align="center" | 1
+
| align="center" | Rubber and Copper which are great insulating and conducting properties
+
| align="center" | It conducts electricity from the trigger to the motor
+
| align="center" | It is made to conduct electricity as efficiently as possible and the rubber to insulate it
+
| align="center" | Manufactured
+
| [[Image:black wire.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 22
+
| align="center" | Spring Loaded Brushes
+
| align="center" | 2
+
| align="center" | Plastic, Copper, Graphite because they are what is used for a AC to DC motor
+
| align="center" | It changes electricity from AC to DC
+
| align="center" | It is made because those materials are needed for the translation of AC to DC
+
| align="center" | Manufactured
+
| [[Image:spring loaded brushes.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 23
+
| align="center" | Motor Screw
+
| align="center" | 1
+
| align="center" | Steel because of high stress and torque put on it
+
| align="center" | It helps hold the motor to the casing
+
| align="center" | It pulls the motor onto the casing and holds it there
+
| align="center" | Machined
+
| [[Image:motor screw.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 24
+
| align="center" | Armature
+
| align="center" | 1
+
| align="center" | Steel, Copper, ABS Plastic to be durable and cheap
+
| align="center" | This part is the inside of the motor and a fan to keep the sawdust away
+
| align="center" | They are all made to do each job as efficiently as possible
+
| align="center" | Machined
+
| [[Image:armature 2.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 25
+
| align="center" | Metal Gear
+
| align="center" | 1
+
| align="center" | Steel for it's durability
+
| align="center" | It is turned by the motor and spins
+
| align="center" | It is a gear and helps turn other parts of the jigsaw
+
| align="center" | Machined
+
| [[Image:metal gear.jpg|center|thumb|75px]]
+
| [[Image:Part 27.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 26
+
| align="center" | 1/4 Inch Metal Plate
+
| align="center" | 1
+
| align="center" | Steel for it's durability
+
| align="center" | Helps keep everything in place
+
| align="center" | It was made thick and strong due the vibrations and forces that act upon it
+
| align="center" | Machined
+
| [[Image:metal plate.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 27
+
| align="center" | Small Metal Plate
+
| align="center" | 1
+
| align="center" | Steel for durability
+
| align="center" | To help hold everything in place
+
| align="center" | Made thin because it vibrates and is used to protect the large plate from abrasion with a large amount of grease between each of them
+
| align="center" | Machined
+
| [[Image:small metal plate.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 28
+
| align="center" | Armature Shaft with Rotor
+
| align="center" | 1
+
| align="center" | Steel, Copper, ABS Plastic, Tape
+
| align="center" | Part of the motor that alternates to turn the inside causing the rotation
+
| align="center" | Made to turn electrical energy into mechanical energy
+
| align="center" | Machined
+
| [[Image:armature.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 29
+
| align="center" | Linear Oscillator
+
| align="center" | 1
+
| align="center" | Steel for durability
+
| align="center" | Oscilates up and down moving the blade
+
| align="center" | In this form it is highly durable and can move easily
+
| align="center" | Machined
+
| [[Image:linear.jpg|center|thumb|75px]]
+
| [[Image:Part31.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 30
+
| align="center" | Washer off of Gear
+
| align="center" | 1
+
| align="center" | Steel for durability
+
| align="center" | Moves inside the hole on the linear oscillator and pushes on it in a vertical direction
+
| align="center" | It is formed this way to fit in the linear oscillators hole and have the least amount of friction possible
+
| align="center" | Machined
+
| [[Image:washer off of gear.jpg|center|thumb|75px]]
+
| [[Image:Part32.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 31
+
| align="center" | Cylindrical Slider
+
| align="center" | 2
+
| align="center" | Steel for durability
+
| align="center" | This is to align the linear oscillator to keep it in line and moving up and down
+
| align="center" | It is made to be simple and cheap but still strong enough to deal with the friction
+
| align="center" | Machined
+
| [[Image:cylindrical slider.jpg|center|thumb|75px]]
+
| [[Image:Part33.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 32
+
| align="center" | Blade Changing Piece
+
| align="center" | 1
+
| align="center" | Plastic for durability and to keep cost down
+
| align="center" | It pulls up the springs and the blade holder to allow the old blade to fall out and put the new blade in
+
| align="center" | It just needs to endure a momentary pull of the finger so it is not thick or strong
+
| align="center" | Injection Molded
+
| [[Image:blade changing piece.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 33
+
| align="center" | Blade Changing Component
+
| align="center" | 1
+
| align="center" | Steel for durability
+
| align="center" | It holds the springs and blade changing piece and pushes down on the blade to keep it in place with help of the springs
+
| align="center" | It is built for the least use of materials and just enough to do what it needs to do.
+
| align="center" | Cast
+
| [[Image:blade changing component.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 34
+
| align="center" | Blade Changing Spring
+
| align="center" | 2
+
| align="center" | Steel for durability
+
| align="center" | It pulls the blade changing component onto the blade holding it in place
+
| align="center" | It is built to have a large amount of force behind it to endure the fast rate at which the blade is moved
+
| align="center" | Manufactured
+
| [[Image:blade changing spring.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 35
+
| align="center" | Alan Wrench Screw
+
| align="center" | 2
+
| align="center" | Steel for durability
+
| align="center" | It holds all of the blade changing components in place
+
| align="center" | It is built to pull to objects together
+
| align="center" | Machined
+
| [[Image:alan wrench screw.jpg|center|thumb|75px]]
+
|-
+
| align="center" | 36
+
| align="center" | Felt Piece
+
| align="center" | 1
+
| align="center" | Felt for shock absorption
+
| align="center" | This to absorb any impact the motor may hit linear oscillator wiht
+
| align="center" | It is minimally built to cover the area's that may be hit
+
| align="center" | Manufactured
+
| [[Image:felt piece.jpg|center|thumb|75px]]
+
| [[Image:Part39.jpg|center|thumb|75px]]
+
 
|-  
 
|-  
 
|-  
 
|-  
 
|-
 
|-
 
|}
 
|}
 +
 +
=== CAD Drawings ===
 +
 +
[[Image:simple motor.jpg|200px]]
 +
 +
Motor.
 +
 +
[[Image:gear1.jpg|200px]]
 +
 +
Gear 1
 +
 +
[[Image:gear2.jpg|200px]]
 +
 +
Gear 2
 +
 +
[[Image:gear 3.jpg|200px]]
 +
 +
Gear 3
 +
 +
[[Image:pulling paper axel.jpg|200px]]
 +
 +
 +
Pulling Paper Axel
 +
 +
=== CAD Animation ===
 +
 +
<embed src="http://www.youtube.com/v/x3_aO8A7JDA&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed>
  
 
== '''Reassembly''' ==
 
== '''Reassembly''' ==
Line 529: Line 309:
 
===Reassembly Process Table===
 
===Reassembly Process Table===
 
{| border="3" cellspacing="0" cellpadding="4" align="center"
 
{| border="3" cellspacing="0" cellpadding="4" align="center"
! width="50" | Step
+
! width="50" | Step  
 
! width="250" | Process
 
! width="250" | Process
 
! width="100" | Tool Used
 
! width="100" | Tool Used
Line 535: Line 315:
 
|-  
 
|-  
 
| align="center" |1
 
| align="center" |1
| align="center" |Remove 7 Phillips-head screws
+
| align="center" |Slid on plastic cartridge support
| align="center" |Phillips-head Screwdriver
+
| align="center" |By Hand
| align="center" |Easy, 1 Screw Quite Difficult
+
| align="center" |Easy
 
|-  
 
|-  
 
| align="center" |2
 
| align="center" |2
| align="center" |Removed Rip Fence Bolt to Saw Blade Locking Lever
+
| align="center" |Put in paper roller
 
| align="center" |By Hand
 
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |3
 
| align="center" |3
| align="center" |Removed Removed Dust Blower Angle off of Dust Blower
+
| align="center" |Put on plastic bridge holding second paper roller
 
| align="center" |By Hand
 
| align="center" |By Hand
| align="center" |Easy
+
| align="center" |Moderate
 
|-  
 
|-  
 
| align="center" |4
 
| align="center" |4
| align="center" |Removed Dust Blower and Rip Fence off of Casing
+
| align="center" |Screwed in two screws
| align="center" |By Hand
+
| align="center" |Flat head Screwdriver
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |5
 
| align="center" |5
| align="center" |Removed Rip Fence off of Casing
+
| align="center" |Put on gears
 
| align="center" |By Hand
 
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |6
 
| align="center" |6
| align="center" |Removed Plastic Blade Guard off of Casing
+
| align="center" |Screwed in three screws holding gears
| align="center" |By Hand
+
| align="center" |Phillips-head Screwdriver
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |7
 
| align="center" |7
| align="center" |Removed Casing off of Casing
+
| align="center" |Put on first gear attached to plastic paper roller
| align="center" |Philips-head Screwdriver
+
| align="center" |By Hand
| align="center" |Moderately Easy  
+
| align="center" |Easy  
 
|-
 
|-
 
| align="center" |8
 
| align="center" |8
| align="center" |Removed Gel Max Comfort Grip off of Casing
+
| align="center" |Slid on another plastic roller
 
| align="center" |By Hand
 
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |9
 
| align="center" |9
| align="center" |Removed Shoe Plate Locking Gear off of Casing
+
| align="center" |Slid on spring
 
| align="center" |By Hand
 
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |10
 
| align="center" |10
| align="center" |Removed Shoe Plate Locking Knob off of Casing
+
| align="center" |Attached plastic paper roller
 
| align="center" |By Hand
 
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |11
 
| align="center" |11
| align="center" |Removed Trigger Switch off of Casing
+
| align="center" |Attached the four page rollers which were located on the underside of the metal brace by attaching their springs which were latched onto a hook in the brace
 
| align="center" |By Hand
 
| align="center" |By Hand
| align="center" |Easy
+
| align="center" |Moderately Easy
 
|-
 
|-
 
| align="center" |12
 
| align="center" |12
| align="center" |Removed Lock on Button off of Trigger Switch
+
| align="center" |Put on two tiny metal clips which allowed the metal rod to be put back on
 
| align="center" |By Hand
 
| align="center" |By Hand
| align="center" |Easy
+
| align="center" |Moderate
 
|-
 
|-
 
| align="center" |13
 
| align="center" |13
| align="center" |Removed Lock Spring off of Lock on Button
+
| align="center" |Screwed on two screws to attach two circular-shaped pieces of metal that the metal roller passed through
| align="center" |Flat-head Screwdriver
+
| align="center" |Phillips-head Screwdriver
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |14
 
| align="center" |14
| align="center" |Removed Plastic Lock Washers off of Lock on Button
+
| align="center" |With the screwing in of two screws the circuit board came off of the plastic holding
| align="center" |Flat Head Screwdriver
+
| align="center" |Phillips-head Screwdriver
| align="center" |Moderately Difficult
+
| align="center" |Easy
 
|-
 
|-
 
| align="center" |15
 
| align="center" |15
| align="center" |Removed Switch Breaker off of Trigger Switch
+
| align="center" |The ink cartridges popped back in
 
| align="center" |By Hand
 
| align="center" |By Hand
| align="center" |Easy
+
| align="center" |Moderately Hard
 
|-
 
|-
 
| align="center" |16
 
| align="center" |16
| align="center" |Removed 2 Cord Clamp Screws off of Cord Clamp off of Casing
+
| align="center" |Attached plastic holding which contained the second circuit board by popping it back on rubber belt
| align="center" |Phillips-head Screwdriver
+
| align="center" |By Hand
| align="center" |Easy
+
| align="center" |Moderately Easy
 
|-
 
|-
 
| align="center" |17
 
| align="center" |17
| align="center" |Removed Red Motor Connecting Wire off of Spring Loaded Graphite
+
| align="center" |Slid a spring on the end of it
 
| align="center" |By Hand
 
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |18
 
| align="center" |18
| align="center" |Removed Black Motor Connecting Wire from Spring Loaded Graphite
+
| align="center" |Popped on metal roller that held a gear which moves gears on the opposite side of the metal brace
 
| align="center" |By Hand
 
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |19
 
| align="center" |19
| align="center" |Disassembled Spring Loaded Graphite Internals
+
| align="center" |Screwed in three screws which detached a motor soldered to a smaller metal brace along with another motor
| align="center" |By Hand
+
| align="center" |Phillips-head Screwdriver
| align="center" |Easy
+
| align="center" |Moderately Easy
 
|-
 
|-
 
| align="center" |20
 
| align="center" |20
| align="center" |Removed Motor Screw From Casing
+
| align="center" |Screwed in three screws which attached the circuit board and the two motors
 
| align="center" |Philips-head Screwdriver
 
| align="center" |Philips-head Screwdriver
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |21
 
| align="center" |21
| align="center" |Removed Red Motor Connecting Wire From Armature
+
| align="center" |Screwed in  the two screws that hold in the metal brace
| align="center" |By Hand
+
| align="center" |Phillips-head Screwdriver
| align="center" |Easy
+
| align="center" |Moderate(awkward positioning)
 
|-
 
|-
 
| align="center" |22
 
| align="center" |22
| align="center" |Removed Black Motor Connecting Wire from Armature
+
| align="center" |Place top case on
 
| align="center" |By Hand
 
| align="center" |By Hand
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
 
| align="center" |23
 
| align="center" |23
| align="center" |Removed Metal Gear From 1/4in. Plate
+
| align="center" |Screwed in four screws
| align="center" |By Hand
+
| align="center" |Phillips-head Screwdriver
| align="center" |Easy
+
|-
+
| align="center" |24
+
| align="center" |Removed 1/4in. Metal Plate from Armature Shaft With Rotar
+
| align="center" |By Hand
+
| align="center" |Easy
+
|-
+
| align="center" |25
+
| align="center" |Removed Small Metal Plate off of Armature Shaft With Rotar
+
| align="center" |By Hand
+
| align="center" |Easy
+
|-
+
| align="center" |26
+
| align="center" |Removed Linear Oscillator from Metal Gear
+
| align="center" |By Hand
+
| align="center" |Easy
+
|-
+
| align="center" |27
+
| align="center" |Removed Washer off of Gear from Metal Gear
+
| align="center" |By Hand
+
| align="center" |Easy
+
|-
+
| align="center" |28
+
| align="center" |Removed Cylindrical Slider from Linear Oscillator
+
| align="center" |By Hand
+
 
| align="center" |Easy
 
| align="center" |Easy
 
|-
 
|-
Line 677: Line 432:
  
 
== '''After Reassembly''' ==
 
== '''After Reassembly''' ==
 +
 +
Since we were not given a power cord, we could not test whether the printer worked initially or after reassembly. The product was designed very well for its purpose. However, we still came up with a few improvements that could be made to the printer. For starters, there were many different types of screws. If they were all the same type of screw, assembly and disassembly would be easier and would only require one tool instead of several screw drivers. Second, it seemed like there was a lot of unnecessary space that wasn’t utilized by parts or components. Minimizing space would make for less material needed, and the product would also be smaller in size and not as bulky. A third improvement would be to implement automatic reverse side printing to be able to print double sided pages and save paper. Our last improvement we considered was to change from ink jet printing to laser jet printing. Ink jet is cheaper initially, but laser jet printing is faster, cheaper in the long run, and prints better quality. Overall, the task of creating a simple, cheap, household printer was accomplished by Compaq.
  
 
== '''References''' ==
 
== '''References''' ==
 +
 +
Amazon.com "Compaq IJ600 Color Inkjet Printer". Retrieved December 1,2008, from [http://www.amazon.com/Compaq-IJ600-Color-Inkjet-Printer/dp/B000055XZS Compaq IJ600]

Latest revision as of 18:45, 17 March 2009

Contents

Executive Summary

Our group project was the Compaq IJ600 color printer. We were assigned to disassemble, analyze, and reassemble the printer and all its respective components. Using the information we obtained from this entire process, our task was to implement some design enhancements and possible improvements to the printer. We meticulously recorded every piece that was removed and documented the few tools that were used. The product was an inkjet printer that was relatively easy to disassemble, though we ran into some problems.


Printa.jpg

Introduction

The product our group was tasked with disassembling was a simple desktop printer. The Compaq IJ 600 is single function inkjet printer. The intended use was for common household medium to low volume printing. The IJ 600 can print in both color and black ink due to separate cartridges. The Compaq IJ 600 has a 100-sheet paper tray for storing paper for print jobs. It can be connected to the computer via a Parallel port or a USB B-type connection.

Work for the project was divided evenly among group members.

Group Leader- Sameer Parikh

Disassembly/Assembly Team- Kevin King, Casey Jacobs

Presentation/Wiki Team- Chris Martensen, Sameer Parikh, Johnnie Pacifico, Casey Jacobs

Presenters- Kevin King, Johnnie Pacifico

CAD Drawing- Kevin King


Group Members

Sameer Parikh

Kevin King

Casey Jacobs

Chris Martensen

Johnnie Pacifico

Before Disassembly

The Compaq Model IJ600 printer was in fairly good condition when we received it. The top casing had a broken knob on one end, but didn’t have a substantial effect on the printer’s appearance or the operation of the casing. It was a little dirty, but that was expected considering how long ago the printer was made. When we opened it up, it looked as if the dissection would be difficult. However upon further examination, the weird shapes of the parts created the illusion that there were more components than there actually were. There ended up being more screws than anything else. All in all, the printer consisted of about 25 to 30 screws and about 20 actual parts. It seems there are only three or four different types of materials used. The metal brace located inside towards the back was aluminum. The paper rollers and some screws seemed to be manufactured out of steel. Other screws, which varied in color, could have been made out of bronze. A belt that was part of the ink cartridge moving system was made out of rubber. The rest of the components, including the casing, trays, ink cartridges, ink cartridge holder, gears, and other little minor components were made out of plastic.

Although the printer did not function when we received it due to the missing power cord, it was easy to see how the printer would work when we removed the top casing. First, the printer’s circuit boards receive information from the computer about the image or text to be printer. The circuit boards then distribute information to the appropriate motors, gears, and the ink cartridges. The first action is the translation from electrical energy to mechanical energy by the first of two paper rollers. When it is time to print, the first roller catches the paper from the top loading section and pushes it through to the second roller. The second roller then grabs the paper and pushes it through underneath the ink cartridges in spurts. Simultaneously, the ink cartridges and the motors moving them process the information about the image to be printed. The motors move the ink cartridges back and forth as they expend little droplets of ink on the page in order to create the desired image. When a line of certain width has the correct ink pattern and density, the motor connected to the roller moves the paper just enough so that the ink cartridges can start printing the next line. This process continues until the entire image is correctly mirrored on the paper. Finally, the roller pushes the finished document out to the tray in the front of the printer.


Disassembly

Disassembly Process Table

Step Process Tool Used Difficulty
1 Unscrew four screws in top casing Phillips-head Screwdriver Easy
2 Remove the top case By Hand Easy
3 Unscrewed the two screws that held in the metal brace in order to easily remove its’ individual parts Phillips-head Screwdriver Moderate(awkward positioning)
4 Removed three screws which detached the circuit board and the two motors Phillips-head Screwdriver Easy
5 Removed three screws which detached a motor soldered to a smaller metal brace along with another motor Phillips-head Screwdriver Moderately Easy
6 Popped out metal roller that held a gear which moved gears on the opposite side of the metal brace By Hand Easy
7 Slid a spring off the end of it By Hand Easy
8 Removed plastic holding which contained the second circuit board by popping it over rubber belt By Hand Moderately Easy
9 The ink cartridges popped right out By Hand Moderately Hard
10 With the removal of two screws the circuit board came off of the plastic holding Phillips-head Screwdriver Easy
11 Unscrewed two screws to remove two circular-shaped pieces of metal that the metal roller passed through Phillips-head Screwdriver Easy
12 Removed two tiny metal clips which allowed the metal rod to be pulled out By Hand Moderate
13 Removed the four page rollers which were located on the underside of the metal brace by detaching their springs which were latched onto a hook in the brace By Hand Moderately Easy
14 Detached plastic paper roller By Hand Easy
15 Slid off spring By Hand Easy
16 Slid off another plastic roller By Hand Easy
17 Pulled off first gear attached to plastic paper roller By Hand Easy
18 Unscrewed three screws holding gears Phillips-head Screwdriver Easy
19 Pulled off gears By Hand Easy
20 Unscrewed two screws Flat head Screwdriver Easy
21 Pulled off plastic bridge holding second paper roller by Hand Moderate
22 Pulled out paper roller By Hand Easy
23 Slid out plastic cartridge support By Hand Easy

After Disassembly

The CAD files can be downloaded here.

Part Table

Part # Part Name Quantity Material and Reason for Choice of Material Function Manufacturing Process Image
1 Cover Screws 4 Steel Holds the cover in place so that the parts inside can work in order Machined
Cover screws.jpg
2 Clips 4 Plastic Lets the paper flow easier from the start to the end. Machined
Clips 1.jpg
3 Ink Cartridge Holder 1 Plastic To hold the cartridge in place. Molded then Machined, and placed by hand
008.jpg
4 Top Roller 1 Plastic and metal for springs Moves the paper from tray towards the ink cartridge Injection Molded
037.jpg
5 Pulling paper axed 1 Metal and rubber Rolls with the help of the motor and brings the paper out with ease. Injection Molded
033.jpg
6 Motherboard 1 Computer material Takes information from the printer and prints off onto a paper. Injection Molded, Machined
7 Gear Head 1 Metal and plastic Turns all the rollers via a motor Machined and Hand Processed
035.jpg
8 Motor 2 Metal Runs off power cord to run the rollers and gear head Injection Molded
044.jpg
9 Cartridge Holder 1 Plastic Holds the cartridges in place, internally Hand Processed
032.jpg
10 Cartridge Belt 1 Rubber Helps move the ink cartridge back and forth. Hand Processed
11 Back Internal Case 1 Metal Holds the motherboard rollers and other components in place. Injection Molded
030.jpg
12 Top Case 1 Plastic Secures the ink cartridges and other components. Machine Processed

CAD Drawings

Simple motor.jpg

Motor.

Gear1.jpg

Gear 1

Gear2.jpg

Gear 2

Gear 3.jpg

Gear 3

Pulling paper axel.jpg


Pulling Paper Axel

CAD Animation

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Reassembly

Reassembly Process Table

Step Process Tool Used Difficulty
1 Slid on plastic cartridge support By Hand Easy
2 Put in paper roller By Hand Easy
3 Put on plastic bridge holding second paper roller By Hand Moderate
4 Screwed in two screws Flat head Screwdriver Easy
5 Put on gears By Hand Easy
6 Screwed in three screws holding gears Phillips-head Screwdriver Easy
7 Put on first gear attached to plastic paper roller By Hand Easy
8 Slid on another plastic roller By Hand Easy
9 Slid on spring By Hand Easy
10 Attached plastic paper roller By Hand Easy
11 Attached the four page rollers which were located on the underside of the metal brace by attaching their springs which were latched onto a hook in the brace By Hand Moderately Easy
12 Put on two tiny metal clips which allowed the metal rod to be put back on By Hand Moderate
13 Screwed on two screws to attach two circular-shaped pieces of metal that the metal roller passed through Phillips-head Screwdriver Easy
14 With the screwing in of two screws the circuit board came off of the plastic holding Phillips-head Screwdriver Easy
15 The ink cartridges popped back in By Hand Moderately Hard
16 Attached plastic holding which contained the second circuit board by popping it back on rubber belt By Hand Moderately Easy
17 Slid a spring on the end of it By Hand Easy
18 Popped on metal roller that held a gear which moves gears on the opposite side of the metal brace By Hand Easy
19 Screwed in three screws which detached a motor soldered to a smaller metal brace along with another motor Phillips-head Screwdriver Moderately Easy
20 Screwed in three screws which attached the circuit board and the two motors Philips-head Screwdriver Easy
21 Screwed in the two screws that hold in the metal brace Phillips-head Screwdriver Moderate(awkward positioning)
22 Place top case on By Hand Easy
23 Screwed in four screws Phillips-head Screwdriver Easy

After Reassembly

Since we were not given a power cord, we could not test whether the printer worked initially or after reassembly. The product was designed very well for its purpose. However, we still came up with a few improvements that could be made to the printer. For starters, there were many different types of screws. If they were all the same type of screw, assembly and disassembly would be easier and would only require one tool instead of several screw drivers. Second, it seemed like there was a lot of unnecessary space that wasn’t utilized by parts or components. Minimizing space would make for less material needed, and the product would also be smaller in size and not as bulky. A third improvement would be to implement automatic reverse side printing to be able to print double sided pages and save paper. Our last improvement we considered was to change from ink jet printing to laser jet printing. Ink jet is cheaper initially, but laser jet printing is faster, cheaper in the long run, and prints better quality. Overall, the task of creating a simple, cheap, household printer was accomplished by Compaq.

References

Amazon.com "Compaq IJ600 Color Inkjet Printer". Retrieved December 1,2008, from Compaq IJ600